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Added the PostgreSQL utility command EXPLAIN to AGE's openCypher
grammar and transform logic. The following forms are allowed -

    EXPLAIN
    EXPLAIN VERBOSE
    EXPLAIN ANALYZE
    EXPLAIN ANALYZE VERBOSE

Note: Using ANALYZE with EXPLAIN will cause the execution of the
openCypher command.

EXPLAIN can be used in AGE as follows -

    EXPLAIN MATCH (u)-[e]->(v) RETURN u;
    EXPLAIN VERBOSE MATCH (u)-[e]->(v) RETURN u;
    EXPLAIN ANALYZE MATCH (u)-[e]->(v) RETURN u;
    EXPLAIN ANALYZE VERBOSE MATCH (u)-[e]->(v) RETURN u;

The EXPLAIN command in AGE is implemented through PostgreSQL's
EXPLAIN command logic. So, the output should be familiar to PG users.

For more information please see PostgreSQL's documention on EXPLAIN.
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Apache AGE (incubating)

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Apache AGE is a PostgreSQL Extension that provides graph database functionality. AGE is an acronym for A Graph Extension, and is inspired by Bitnine's fork of PostgreSQL 10, AgensGraph, which is a multi-model database. The goal of the project is to create single storage that can handle both relational and graph model data so that users can use standard ANSI SQL along with openCypher, the Graph query language.

Overview

  • Apache AGE is currently being developed for the PostgreSQL 11 release and will support PostgreSQL 12 and 13 in 2021 and all the future releases of PostgreSQL.
  • Apache AGE supports the openCypher graph query language and label hierarchy.
  • Apache AGE enables querying multiple graphs at the same time. This will allow a user to query two or more graphs at once with cypher, decide how to merge them and get the desired query outputs.
  • Apache AGE will be enhanced with an aim to support all of the key features of AgensGraph (PostgreSQL fork extended with graph DB functionality).

Latest happenings

Installation

Viewer Tools in AGE

AGViewer : https://github.com/bitnine-oss/AGViewer.git

  • This is a visualization tool. After AGE Extension Installation You can use this tool to use the visualization features.
  • Follow the instructions on the link to run it. Under Connect to Database , select database type as "Apache AGE"

Documentation

Here is the link to the latest Apache AGE documentation. You can learn about how to install Apache AGE, its features and built-in functions and how to use various Cypher queries.

Contribution

You can improve ongoing efforts or initiate new ones by sending pull requests to this repository.
Also, you can learn from the code review process, how to merge pull requests, and from code style compliance to documentation, by visiting the Apache AGE official site - Developer Guidelines.